Dumping buggy



Nov. 29, 1938. .1. D. WALKER I 2,138,562

DUMPING BUGGY Filed Dec. 6, 1937 2 Sheets-Sheet 1 WITNESS ATTORNEYS Nov.29, 1938. WALKER 2,138,562

DUMPING BUGGY Filed Dec. 6, 1937 2 Sheets-Sheet 2 Jlzmes B. Wizllzer7INVENTOR ATTO R N EYS Patented Nov. 29, 1938 UNITED STATES DUMPINGBUGGY James D. Walker, Butler, Pa.

Application December 6, 1937, Serial No. 178,381

3 Claims.

This invention relates to dumping buggies employed in mines for theloading of mining cars and of the character set forth in my applicationfiled January 6, 1936, and Serial No. 57,819, allowed January 19, 1937.The present invention has for the primary object the provision of animproved buggy gate and mounting therefor on the buggy which will assureagainst accidental opening of the gate until positively released on thebuggy reaching a position for unloading into a mine car, and which willpermit free movement of one of the operating cables of the buggy sweepwhich extends through the body of the buggy.

With these and other objects in view, this invention consists in certainnovel features of construction, combination and arrangement of parts tobe hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had tothe following description and accompanying drawings, in which Figure 1is a fragmentary sectional view showing a mine outlay including an aislethrough which a mine car operates and a lateral in which the presentinvention operates.

Figure 2 is a top plan View, partly in section, ilustrating the same.

Figure 3 is a fragmentary vertical sectional view showing the buggy withthe sweep located at one end of the body and the tail gate in closedposition.

Figure 4 is a view similar to Figure 3 showing the sweep moved to theopposite end of the buggy body and the tail gate in a released position.

Figure 5 is a sectional view taken on the line 5-5 of Figure 3.

Figure 6 is an end View illustrating the tailgate in a closed position.

Figure 7 is a view similar to Figure 6 showing the means of securing thetail gate in closed position and being acted upon to release the tailgate.

Figure 8 is a fragmentary horizontal sectional View showing one end ofthe buggy.

Figure 9 is a plan view showing the driving mechanism for the operatingcables of the buggy.

Referring in detail to the drawings, the numeral I indicates an entry ofa mine and 2 a lateral extending from said entry. Mine cars operate inthe entry, one of which is indicated by the character 3. In order thatthe mine material obtained at the inner end of the lateral 2 beconveniently and quickly conveyed to the car 3, a buggy 4 is employedwhich travels upon a track 5. The track 5 extends into the aisle l andis supported by a trestle 6 and the rails of the track above the trestleare bent upon themselves to form a buggy stop i. The buggy Stop 1 islocated in close proximity to the position occupied by the mine car andin a plane above the lateral so that when the buggy engages with thestop one end thereof will be disposed directly over the car 3. Said endof the buggy is equipped with a tail gate 8. A hinge 51 connects thetail gate 3 to the buggy and is of a type which will permit the tailgate to have a vertical movement as well as a swinging movement. Lockingplates [0 are secured on the tail gate and each include spacedprojections H and I2. The projections l2 are slightly longer than theprojections H and extend through notches formed in the body of the buggywhile the pro-' jections l are received in recesses formed in the bodyof the buggy. The projections fitting in the openings and recesses asdescribed will secure the tail gate against both swinging and verticalmovement. The tail gate 8 is constructed of a pair of sections theadjacent ends of which are spaced to permit free passage through thetail gate of an operating cable l4. One end of the operating cable isconnected to a sweep l5 slidably mounted in the body of the buggy. Theother end of the operating cable is connected to a drum of a powerdriven mechanism' l6 including a clutch mechanism. The mechanism l6 alsohas connected thereto an operating cable IT. The operating cables passover pulleys 18 carried by the trestle 6 and the operating cable ll isfurther passed over a pulley 89 located at the inner end of the lateral2. The operating cable after passing over the pulley I9 is secured onthe sweep [5. The sweep is free to slide from one end of the body ofthe" buggy to the other. The means employed for slidably mounting thesweep is of any conventional construction such as reduced portions ofthe sweep extending into guide grooves [9' formed in the sides of thebuggy body, the ends of the grooves acting as stops to prevent the sweepfrom moving out of the ends of the buggy body.

Gate trip bars 2! are included in the structure of the trestle 6 andproject upwardly and forwardly from the trestle and terminate within theaisle 1 over the mine car 3 and provide supports for certain of thepulleys which support the operating cables. The inclination of the tripbars is such that when the buggy 4 reaches a position for unloading intothe mine car 3 they will have en,- gaged the extensions 12 of thelocking plate to impart vertical movement to the end gate. The bug yhaving been stopped by engaging the stop 7 with the operating cable [4continuing its driving action causes the sweep to travel the length ofthe buggy body and remove therefrom the load into the mine car. It is tobe understood that the sweep l prior to loading the buggy is positionedat the end of the buggy remote from the tail gate and retains thisposition when loaded as long as the tail gate remains latched due to theload in the body being between said sweep and the tail gate. It is to beunderstood that the cable ll draws the buggy into the lateral while thecable I 4 acts to draw the bu y out of the lateral into engagement withthe stop 1 and to bring about movement of the sweep I5 endwise of thebuggy body as soon as the tail gate is released and the buggy engagesthe stop, which causes the load in the buggy to be displaced into themine car.

Secured to and extending at right angles from the sweep l5 are ruddersJ5 acting as mediums for connecting the operating cables 4 and IT to thesweep. The rudder which lies within the buggy will be engaged by themine material in the buggy and will act as a stabilizer for the sweep asthe same is drawn endwise of the buggy for the purpose of unloading thesame and thereby prevent cooking of the sweep in the buggy andconsequently eliminate binding of the sweep so that the same will freelyslide from end to end of the buggy. The placing of rudders on each sideof the sweep will permit reversing the sweep in the bug y.

Whatis claimed is:

1. A dumping buggy comprising a track located in a mine lateral andhaving at the mouth of said lateral, rails of the track bent to form abuggy stop, a buggy operable on said track and including a body open ateach end, a sweep slidable in said body from one end to the other andnormally occupying a position at one end of the body, a tail gatemounted on the body for closing the other end thereof and capable ofswinging and vertical movements, latch plates secured to said gate,projections on said latch plates and the projections of each platevarying as to length, said body having notches and recesses to receivethe projections for releasably securing the tail gate in closed positionwith the longest projections extending below the body, means connectedto the sweep for causing movement of the buggy in either direction overthe track and to bring about movement of the sweep from one end of thebody to the other end thereof when the stop is engaged by the buggy, andmeans to engage certain of the projections to release the tail gate byimparting a vertical movement thereto to move the projections cut oftheir respective notches and recesses.

2. A dumping buggy comprising a track located in a mine lateral andhaving at the mouth of said lateral, rails of the track bent to form abuggystop, a buggy operable on said track and including a body open ateach end, a sweep slidable in said body from one end to the other andnormally occupying aposition at one end of the body, a

tail gate mounted on the body for closing the other end thereof andcapable of swinging and vertical movements, latch plates secured tosaidgate, projections on said latch plates and the projections of each platevarying as to length, said body having notches and recesses to receivethe projections for releasably securing the tail gate in closed positionwith the longest projections extending below the body, means connectedto the sweep for causing movement of the buggy in either direction overthe track and to bring about movement of the sweep from one end of thebody to the other end thereof when the stop is engaged by the buggy, andfixed inclined members arranged adjacent the stop to contact certain ofthe projections on the buggy nearing the stop to bring about verticalmovement of the tail gate to permit swinging movementof said gate causedby the sweep moving from one end of the body to the other end after theengagement of the buggy with the stop.

3. A dumping buggy comprising a track located in a mine lateral andhaving at the mouth of said lateral, rails of the track bent to form abuggy stop, a buggy operable on said track and including a body open ateach end, a sweep slidable in said body from one end to the other andnormally occupying a position at one end of the body, a tail gatemounted on the body for closing the other end thereof and capable ofswinging and vertical movements, latch plates secured to said gate,projections on said latch plates and the projections of each platevarying as to length, said body having notches and recesses to receivethe projections for releasably securing the tail gate in closed positionwith the longest projections extending below the body, means connectedto the sweep for causing movement of the buggy in either direction overthe track and to bring about movement of the sweep from one end of thebody to the other end thereof when the stop is engaged by the buggy,fixed inclined members arranged' adjacent the stop to contact certain ofthe projections on the buggy nearing the stop to bring about verticalmovement of the tail gate to permit swinging movement of said gatecaused by the sweep moving from one end of the body to the other endafter the engagement of the buggy with the stop, said gate includingsections having adjacent ends thereof spaced to permit a part of theoperating mechanism of the sweep to extend through the gate and into thebody of the bug y.

- JAMES D. WALKER.

